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Americans have a big party ... Independence Day. Some towns and cities have parades with music bands and flags ... the Fourth of July. The atmosphere of the family party, with hot dogs and hamburgers ... the afternoon and the fireworks ... night makes the Fourth of July a national birthday party. Thanksgiving Day is ... the fourth Thursday ... November. People started to celebrate it ... 1621. ... Thanksgiving all people in the family gather in the house of their parents and eat a large traditional dinner.